Uses TCP as transport, port 179 Path vector protocol Checks before becoming a neighbor The TCP connection request must come from an IP associated with a neighbor command The AS number must match that in the neighbore statement The routers

I’m 3/4 done with Halabis book Internet routing architectures. It’s one of the best books out there and a recommended read for ayone wanting to learn some serious BGP. When done with BGP I will probably move on to MPLS.

Cisco proprietary Uses IP protocol 88 as transport Support for MD5 authentication (no clear text) Sends updates to 224.0.0.10 Distance vector but has some link state like features Timers Uses a hello and a hold timer. Neighbors discovered via hello

Defined in RFC 2328 Supports VLSM and CIDR Is a link state protocol Uses a link state database (LSDB) for topology information, identical within area Reliable flooding of LSAs Uses hello protocol to build adjacencies Runs directly over IP,

Doing some studying of BGP at the moment. Reading the certification guide and Halabis book. I already did certify BGP back when going for the CCIP but later decided to go straight for the IE so I have a pretty